x402 census · nodeset.regevidencehub.com · 25f940fcee8e · JSON
POST /api/v1/compatibility-preflight
gone
Static compatibility comparison of baseline and candidate OPC UA NodeSet2 XML revisions. Not runtime interoperability or safety certification.
Verdict: dead listing. 404/410: gone.
Facts from the catalogs
| Field | Value |
|---|---|
| URL | https://nodeset.regevidencehub.com/api/v1/compatibility-preflight |
| Method | POST |
| Price | $0.005 USDC = 5000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 |
| Network | eip155:8453 (base) |
| payTo | 0xDAAef0FD525278aAD0bA11066A96c338642A3d1A |
| Seller | nodeset.regevidencehub.com |
| Catalogs | payai (row updated 2026-10-14) |
| Listed since (lower bound) | 2026-10-14 (earliest catalog timestamp; catalogs report last-update times only) |
| Last catalog update | 2026-10-14 |
| CDP quality counters | not in the CDP catalog |
| Category (keyword rule) | other/unknown |
| Templated path | no |
| x402Version in catalog | 2 |
| Service name / tags | none |
Unpaid probe (census of 2026-10-22)
| Field | Value |
|---|---|
| Probed at | 2026-10-22T00:38:37.269Z |
| HEAD | 404 |
| GET | 404 |
| Verdict | gone 404/410: gone |
| 402 carried in | n/a |
| x402Version in the 402 | n/a |
| accepts[0] | none |
| Live amount equals catalog price | not comparable |
| Live payTo equals catalog payTo | not comparable |
| extensions.bazaar in the 402 | no |
| PAYMENT-REQUIRED header | no |
| WWW-Authenticate offer | none |
| Content type / server / CORS | text/plain / railway-hikari / none |
| Latency | 382 ms |
| Error | none |
No hourly re-probe has reached this resource yet; the cron covers a rotating slice of 150 per hour.
On-chain facts for the payTo (public address)
| Field | Value |
|---|---|
| Settlement history | unresolved: payTo not seen in the payer forensics (180 wallets' outbound history) or the Blockscout sample |
Declared input and output (extensions.bazaar)
{
"input": {
"body": {
"new_nodeset_xml": "<UANodeSet></UANodeSet>",
"old_nodeset_xml": "<UANodeSet></UANodeSet>"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"issues": [],
"result": "COMPATIBLE",
"summary": {},
"issue_count": 0,
"new_node_count": 1,
"old_node_count": 1
}
}
}
Try it (unpaid: shows the 402)
curl -si -X POST 'https://nodeset.regevidencehub.com/api/v1/compatibility-preflight' -H 'accept: application/json' -H 'content-type: application/json' --data '{}'
The catalog declares POST. A 402 answer carries the payment requirements in the JSON body and, for x402 v2, base64 in the PAYMENT-REQUIRED header. This page never sends a payment.
Paid checks (x402, USDC on Base)
GET https://bazaar.agentexchange.work/r/25f940fcee8e/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"25f940fcee8e"} places this resource at the top of the report and search pages for 30 days for $1.00, labelled. Unpaid requests answer 402 with the terms. Pricing.
Catalog references: PayAI listing status · this record as JSON · all resources on nodeset.regevidencehub.com.